Global Patent Index - EP 0662869 B1

EP 0662869 B1 19971229 - ROLLING MILL WITH A DEVICE FOR CONTROLLING THE ROTATIONAL SPEED OF THE ROLLS

Title (en)

ROLLING MILL WITH A DEVICE FOR CONTROLLING THE ROTATIONAL SPEED OF THE ROLLS

Title (de)

WALZWERKK MIT EINER VORRICHTUNG ZUM REGELN DER DREHZAHLEN DER WALZEN

Title (fr)

LAMINOIR AVEC UN DISPOSITIF DE REGULATION DE LA VITESSE DE ROTATION DES CYLINDRES

Publication

EP 0662869 B1 19971229 (DE)

Application

EP 93918963 A 19930908

Priority

  • DE 9300826 W 19930908
  • DE 4232685 A 19920929

Abstract (en)

[origin: US5619880A] PCT No. PCT/DE93/00826 Sec. 371 Date Mar. 29, 1995 Sec. 102(e) Date Mar. 29, 1995 PCT Filed Sep. 8, 1993 PCT Pub. No. WO94/07618 PCT Pub. Date Apr. 14, 1994The rotational speed of the rolls of a rolling mill is controlled such that the loops of rolled material between two roll stands have a constant height. The last roll stand in the direction of rolling preferably acts as a guide roller stand, whose speed is controlled. The loop height is controlled by adjusting the rotational speed of the roll stand ahead of the loop.

IPC 1-7

B21B 37/52

IPC 8 full level

B21B 37/00 (2006.01); B21B 37/46 (2006.01); B21B 37/48 (2006.01); B21B 37/50 (2006.01); B21B 37/52 (2006.01)

CPC (source: EP US)

B21B 37/50 (2013.01 - EP US)

Designated contracting state (EPC)

AT DE IT SE

DOCDB simple family (publication)

US 5619880 A 19970415; AT E161443 T1 19980115; DE 4232685 A1 19940331; DE 59307903 D1 19980205; EP 0662869 A1 19950719; EP 0662869 B1 19971229; JP H08501501 A 19960220; WO 9407618 A1 19940414

DOCDB simple family (application)

US 40699195 A 19950329; AT 93918963 T 19930908; DE 4232685 A 19920929; DE 59307903 T 19930908; DE 9300826 W 19930908; EP 93918963 A 19930908; JP 50856994 A 19930908